Cheapest priced copy (Coldsnap Theme Decks): $0.35 at Card Kingdom, near mint, their price list as of .
Giant Trap Door Spider 
Creature — Spider · 2/3 · Uncommon · Ice Age · #293
{1}{R}{G}, {T}: Exile this creature and target creature without flying that's attacking you.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.35 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Coldsnap Theme Decks | 293 | Uncommon | $0.35 | — |
| Deckmasters | 33 | Uncommon | $0.35 | — |
| Ice Age | 293 | Uncommon | $0.35 | — |
2 rulings from Wizards of the Coast
- 4 October 2004If Giant Trap Door Spider leaves the battlefield before its ability resolves, the ability will still resolve as normal. The targeted creature will be exiled.
- 4 October 2004If the targeted creature leaves the battlefield (or otherwise becomes an illegal target) before the ability resolves, the ability won’t resolve. Giant Trap Door Spider will remain on the battlefield.